I think all of us except Sanura agree that earthquake is OP. I don't think it needs to be completely removed form the game it just needs to have its cost increased.

As for dissipation shield its fine as it is. probably the average for it is 10-12 QP while it isn't very deep into the game. Thats 3-4 dragons, 10-12 fireflies and queens, or whatever other combinations fo monsters you want to overcome it. Most decks should also be able to get some monsters out to damage the opponent before he's able to build up a large enough amount of quantums to fend you off for the rest of the game. This would force them to throw the shield up early. It takes quite a few turns to be able to get that many QP up so in reality your deck should be able to break them and once you do break them its game over for the opponent because THEY HAVE 0 QUANTA LEFT. If your deck can't muster up the stength to beat this kind of deck its not bad card design on Zanzarino's part, but bad deck design on YOUR part for not being able to overcome multiple strategies and instead relying on the premise that to win your opponent has to attack your hp. Your deck should be able to adapt to new situations that arise form new cards being introduced into the game and if it can't then its probably better off that you find a new strategy and start experimenting. Thats what i did. I experimented and ended up with a deck that is able to overcome every deck type. It isn't always able to because of a bad draw, but every deck is susceptible to that. I'm always ready to change my deck up if I feel that I can make an even better deck thats more suited to the current playing environment. I'll probably still go with my pillarless deck after earthquake is nerfed beause this deck is able to go up against every kind of deck.

So from now on just because your deck is having trouble going up against a new card don't say its overpowered. Try experimenting and changing your deck around some. The only time a card is really overpowered is when it completely changes the game environment around it. Dissipation shield doesn't do that because a good deck should be able to hit for plenty more than 30-40 damage a turn. The only cards that have really fallen into the category of OP have been nova(back when it was 2 of each quantum), miracle(everyone played it for double points), owls eye(tons of flying owls eye decks were made because it could exterminate entire fields of monsters easily and cheaply), and earthquake(people have to use nova or earth element so that they are able to use it and defend against it). Dimensional shield might be overpowered, but its the pure defensive strategy for aether and until it gets some new cards introduced then you can't touch anything about aether.